<template>
    <div class="app-container">
        <!-- 这是 Header 区域 -->
        <mt-header fixed title="前端程序员项目">
            <span slot="left" @click="goBack" v-show="flag">
                <mt-button icon="back">返回</mt-button>
            </span>
        </mt-header>

        <!-- 这是路由的容器，将来匹配到的 路由组件放到这个位置 -->
        <transition>
            <router-view></router-view>
        </transition>



        <!-- 底部的 Tabbar 区域使用的是 MUI 中的 Tabbar -->
        <nav class="mui-bar mui-bar-tab">
			<router-link class="mui-tab-item-llb" to="/home">
				<span class="mui-icon mui-icon-home"></span>
				<span class="mui-tab-label">首页</span>
			</router-link >
			<router-link  class="mui-tab-item-llb" to="/member">
				<span class="mui-icon mui-icon-contact"></span>
				<span class="mui-tab-label">会员</span>
			</router-link >
			<router-link  class="mui-tab-item-llb" to="/shopcar">
				<span class="mui-icon mui-icon-extra mui-icon-extra-cart">
                    <span class="mui-badge" id="badge">{{$store.getters.getAllCount}}</span>
                    </span>
				<span class="mui-tab-label">购物车</span>
			</router-link >
			<router-link  class="mui-tab-item-llb" to="/search">
				<span class="mui-icon mui-icon-search"></span>
				<span class="mui-tab-label">搜索</span>
			</router-link >
		</nav>



</div>
</template>

<script>
    export default {
        data () {
            return {
                flag:false
            }
        },
        created () {
            this.flag = this.$route.path === '/home'? false : true ;
        },
        methods: {
            goBack () {
                // 点击后退
                this.$router.go(-1);
            }
        },
        watch : {
            "$route.path":function(newVal) {
                if(newVal === "/home") {
                    this.flag = false
                }else {
                    this.flag = true
                }
            }
        }
    }


</script>
    
<style lang="scss" scoped> 
.mint-header{
    z-index: 99;
}
    .app-container{
        padding-top:40px;
        padding-bottom:50px;
        overflow-x:hidden;
    }
    .v-enter{
        opacity:0;
        transform:translateX(100%);
    }
    .v-leave-to{
        opacity:0;
        transform:translateX(-100%);
        position:absolute;
    }
    .v-enter-active,
    .v-leave-active{
        transition:all 0.5s ease;
    }
   
    // 解决 tabbar 在导入 mui.js 之后不生效的问题
    .mui-bar-tab .mui-tab-item-llb.mui-active {
        color: #007aff;
    }
    .mui-bar-tab .mui-tab-item-llb {
        display: table-cell;
        overflow: hidden;
        width: 1%;
        height: 50px;
        text-align: center;
        vertical-align: middle;
        white-space: nowrap;
        text-overflow: ellipsis;
        color: #929292;
    }
    .mui-bar-tab .mui-tab-item-llb .mui-icon {
        top: 3px;
        width: 24px;
        height: 24px;
        padding-top: 0;
        padding-bottom: 0;
    }
    .mui-bar-tab .mui-tab-item-llb .mui-icon~.mui-tab-label {
        font-size: 11px;
        display: block;
        overflow: hidden;
        text-overflow: ellipsis;
    }
</style>
